"The character Bun, learning, above
the hole. This coin was cast from the great image of the Buddha, the Daibutsu,
which in its time had been cast of demonetized currency, and is supposed
to contain a small portion of silver and gold"[S]

22 mm

Obv.:

Kuan Ei Tsu Ho

Rev.:

Right: Bun positioned on it's side

Ref.:

This coin is made from a much brighter, yellow metal than the other coins
pictured here.